PISTON 2468749 - Caterpillar

Installation of Mud Flap Plates
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Bottom view (1) 344-7342 Body (CTR) (2) 344-7344 Body (LH)
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(26) 5T-5124 Plate As (27) 5T-5123 Plate As
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View of area (F) (26) 5T-5124 Plate As (X) 464.42 mm (18.284 inch) (Y) 16.32 mm (0.643 inch)
Use a grinder in order to clean the welding area of plate assembly (26) and the adjoining surfaces on the bottom of the body assembly. Completely remove all paint, rust, scale, slag, and moisture before welding.
Position plate assembly (26) on the bottom of left-hand body assembly (2) in the location that is shown in Illustration 81.
Once plate assembly (26) is aligned correctly, tack weld plate assembly (26) to left-hand body assembly (2) .Note: Before tack welding, preheat the welding areas to the proper temperature. Refer to ""Welding Instructions"". Use 164-3310 Infrared Thermometer in order to check for the proper preheat temperature.
Preheat plate assembly (26) and left-hand body assembly (2) .Note: Before welding, preheat the welding areas to the proper temperature. Refer to ""Welding Instructions"". Use 164-3310 Infrared Thermometer in order to check for the proper preheat temperature.
Weld plate assembly (26) to left-hand body assembly (2) .Note: Remove the slag after every weld pass.Reference""Welding Instructions"" and ""Weld Specifications and Parameters""
Repeat Step 1 through Step 5 for plate assembly (27) on the right-hand body assembly.Installation of Cover Plates
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Front view (1) 344-7342 Body (CTR) (2) 344-7344 Body (LH) (3) 344-7343 Body (RH) (28) 352-1766 Plate
Use a grinder in order to clean the welding area of plates (28) and the adjoining surfaces on the body assemblies. Completely remove all paint, rust, scale, slag, and moisture before welding.
Use a suitable lifting device in order to place plates (28) on the body assemblies. Locate plates (28) in the location that is shown. The approximate weigh of plate (28) is 12.06 kg (26.60 lb).
Once plates (28) are aligned correctly, tack weld plates (28) to left-hand body assembly (2) and right-hand body assembly (3) .Note: Before tack welding, preheat the welding areas to the proper temperature. Refer to ""Welding Instructions"". Use 164-3310 Infrared Thermometer in order to check for the proper preheat temperature.
Preheat plates (28) and the body assemblies .Note: Before welding, preheat the welding areas to the proper temperature. Refer to ""Welding Instructions"". Use 164-3310 Infrared Thermometer in order to check for the proper preheat temperature.
Weld plates (28) to left-hand body assembly (2) and right-hand body assembly (3) .Note: Remove the slag after every weld pass.Refer to ""Weld Types and Locations"" for the proper welds.Reference""Welding Instructions"" and ""Weld Specifications and Parameters""Miscellaneous Items
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Bottom view (B) Bracket (29) 352-1865 Bracket As (30) 352-1866 Bracket As Note: Bracket assemblies (29) and (30) are installed during the truck assembly procedure. Refer to Special Instructions, REHS5076, "Assembly Procedure for the 789D Off-Highway Truck" for the proper installation procedures.Note: Brackets (B) are to be used for fall protection devices only. Not intended for lifting purposes.Miscellaneous
Remove all lifting eyes, alignment blocks, lugs,